http://slide.mil.news.sina.com.cn/k/slide_8_193_59548.html
中国国产发动机开始正式测试!C919大飞机将上中国芯
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2017年12月25日,大型客机发动机验证机(CJ-1000AX)首台整机在上海完成装配,标志我国首个民用大涵道比涡扇发动机整机验证平台已经建立,将为后续研制工作奠定坚实基础。
中国国产发动机开始正式测试!C919大飞机将上中国芯
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CJ-1000AX由中国航发集团商发公司负责研制,直径1.95米,长3.29米。其结构复杂、试制难度大,包含风扇/增压级、核心机、低压涡轮和附件传动机匣装置,由近35000个零组件组成。
中国国产发动机开始正式测试!C919大飞机将上中国芯
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中国航发集团商发公司采用“主制造商-供应商”研制模式,联合24家单位参与试制工作,先后突破了钛合金宽弦高空心率风扇叶片、铝合金大型薄壁风扇包容机匣、3D打印燃烧室燃油喷嘴等多项试制关键技术,
中国国产发动机开始正式测试!C919大飞机将上中国芯
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同时也攻克了大直径、长轴类单元体水平装配技术难关,历史18个月完成首台整机试制、装配。
中国国产发动机开始正式测试!C919大飞机将上中国芯
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参考消息网12月28日报道 据塔斯社12月26日报道称,中国自主研制的矢量发动机首次顺利完成飞行测试。据俄媒援引中国媒体报道,歼-10歼击机安装了采用这种技术的动力装置。
中国国产发动机开始正式测试!C919大飞机将上中国芯
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报道称,中国媒体称,在歼-10歼击机上测试“太行”矢量发动机是为了积累有价值的经验和数据,以便将来用在歼-20战机上。
中国国产发动机开始正式测试!C919大飞机将上中国芯
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报道称,目前,中国正在继续研制第5代歼击机歼-20。它于2017年9月宣布列装。但一些媒体称,原型机安装的是俄罗斯生产发动机。未来,中国打算把发动机换成国产发动机。
中国国产发动机开始正式测试!C919大飞机将上中国芯
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报道称,与此同时,中国正在研制的另一款新一代歼击机FC-31的原型机已于2012年10月完成首飞。FC-31是中国航空工业集团公司研制的隐形战机。
中国国产发动机开始正式测试!C919大飞机将上中国芯
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兵工科技(微信ID:binggongkeji)歼-20小批量装备部队后,大家都在关注其配装的国产发动机研制情况。今天,中央电视台国际频道《今日关注》节目报道了一个令人振奋的消息:2017年12月25日,一架国产歼-10战斗机搭载着国产矢量喷管进行了首次试飞!这是中国国产发动机矢量喷管技术第一次公开亮相,表明中国已经掌握了这一五代机发动机的核心技术,歼-20的最后一块短板将被补齐,外媒评论认为这将使歼-20成为最强五代机!
中国国产发动机开始正式测试!C919大飞机将上中国芯
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据《今日关注》栏目报道,网络媒体曝光的歼-10战斗机搭载的安装了矢量喷管的发动机,是涡扇-10“太行”某型改进型发动机,这次安装矢量喷管,是首次进行矢量喷管试飞。
中国国产发动机开始正式测试!C919大飞机将上中国芯
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从外形看,曝光的矢量喷管,采用鱼鳞外形设计,与俄罗斯三元矢量喷管技术在原理上有相似之处,但该喷管明显不是笨重的整体式矢量喷管,其外层均匀分布有多个调节片机构,通过调节片机构多自由度共同作动,来达到控制喷管偏转的目的。(责任编辑:薛贺 SN118)
http://en.people.cn/n3/2017/0911/c90000-9267207.html
C919 jumbo jet expected to be powered by homemade engine: expert
(
Global Times) 10:48, September 11, 2017
China's domestically developed jumbo jet C919 is expected to be equipped with homemade engines that feature light metal material, a Chinese expert said on Saturday.
Domestically made Changjiang-1000 engine (CJ-1000) that may be used to power the C919 is under development and will replace imported foreign engines in future on the jet, according to Cao Chunxiao, an academician with the Chinese Academy of Sciences and a researcher with Aero Engine Corporation of China Beijing Institute of Aeronautical Materials, said on Saturday.
Nearly 23 percent of the CJ-1000 engine will probably be titanium alloy, which has higher density than iron and will help reduce the weight of the jet, Cao said during the 2017 China's Top 500 Enterprises Summit Forum on Saturday in Jiangxi, thepaper.cn reported.
The C919 made a successful maiden flight on May 5 this year. It was powered by LEAP-1C engine developed by CFM International, a 50-50 joint venture between France's Safran Aircraft Engines and GE of the US.
"It's quite competitive to have 23 percent titanium alloy on the CJ-1000. The mainstream civil engines in the world contain similar quantity of light materials," Wang Yanan, chief editor of the Aerospace Knowledge magazine, told the Global Times on Sunday.
The homemade engine is expected to make breakthroughs in its main parts - turbine, fan and blades, Wang added.
"The first CJ-1000 engine is expected to be completed by the end of 2017 and a series of intensive tests are planned when it is mounted on an airplane," Feng Jinzhang, general manager at AECC Commercial Aircraft Engines Co, said at a forum on August 26.
"The CJ-1000 is not just a homemade product. If the CJ -1000 engine is tested successfully and is able to power aircraft, it will mark the evolution of China's aerospace industry from manufacturing mature military products to delivering civil products," Wang said.
"China owns very competitive aircraft engine manufacturing technology but it is mainly used in military," he explained.
Feng said that the C919 with homemade CJ-1000A engine will finish its assembly within this year, and the wide-body passenger jet C929 with the engine CJ-2000 is undergoing testing.
The market of engines for commercial aircraft is promising, which Feng estimated in the next two decades to hit 80,000 worldwide, with the market value reaching $1 trillion.
The CJ-1000 is designed for C919, but is expected to power either Boeing 737 or Airbus 320 or a similar newly built aircraft in the world market by 2025, Wang said.
The engines, as one of high-end products in aviation industry, will then become a pioneer of China's overall manufacturing industry, he added.